Let me start by saying, this TolleSonne filament storage kit is a game-changer for anyone serious about keeping their 3D printing filaments in perfect condition. I've been using it for several weeks now, and I'm thoroughly impressed with how well it preserves my PLA and PETG filaments from moisture.

The electric pump does take a bit of patience - it's not lightning fast, but here's a pro tip: apply gentle pressure and create some wrinkles in the bag to help air escape more efficiently. When I'm in a hurry, I actually prefer using the hand pump first to get most of the air out, then finish with the electric one.

What really stands out is the bag quality. These PE+PA composite bags are surprisingly durable - I've reused several multiple times without any tearing. The clear design is genius too; I can check my silica gel indicators without breaking the seal. The included labeling pens have been super helpful for organizing my different filament types.

While most users report great results, I did notice one thing: you need to be careful with the blue vent labels. They're crucial for maintaining the vacuum seal. Also, placing the bags on a flat surface during pumping works much better than relying solely on the clips.

At this price point, getting 50 bags plus both pump options is fantastic value. Even if you primarily use one type of pump (I favor the electric one), having both gives you flexibility. For anyone tired of dealing with brittle, moisture-damaged filament, this storage solution is absolutely worth it.